ASN AS12238 is an Autonomous System Number used to identify a network for BGP internet routing.

What do peers, upstreams, and downstreams mean in ASN data?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access the full ASN tables?

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AS12238 AECOM | IPGeolocation.io

ASN Lookup Tool

AECOM aecom.com

US 1 Routes

AS Data

AS12238

AS12238 – AECOM

AS Number	12238
AS Name	AECOM
Organization	AECOM(aecomc)
Country	US
Website	aecom.com
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	1999-04-28

ASN Intelligence API for production workflows

Use ASN data for AS12238 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
65.240.194.0/23	AS12238	AECOM	AECOM	512

Raw Whois Response

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#


ASNumber:       12238
ASName:         AECOM
ASHandle:       AS12238
RegDate:        1999-04-28
Updated:        2024-06-26
Comment:        http://www.aecom.com    
Ref:            https://rdap.arin.net/registry/autnum/12238


OrgName:        AECOM
OrgId:          AECOMC
Address:        1999 Avenue of the Stars
Address:        Suite 2600
City:           Los Angeles
StateProv:      CA
PostalCode:     90067
Country:        US
RegDate:        1999-04-28
Updated:        2024-06-26
Ref:            https://rdap.arin.net/registry/entity/AECOMC


OrgTechHandle: LAUCH3-ARIN
OrgTechName:   Lauchlan, Graeme 
OrgTechPhone:  +447503 641062 
OrgTechEmail:  graeme.lauchlan@aecom.com
OrgTechRef:    https://rdap.arin.net/registry/entity/LAUCH3-ARIN

OrgAbuseHandle: LAUCH3-ARIN
OrgAbuseName:   Lauchlan, Graeme 
OrgAbusePhone:  +447503 641062 
OrgAbuseEmail:  graeme.lauchlan@aecom.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/LAUCH3-ARIN

OrgAbuseHandle: DOUGL278-ARIN
OrgAbuseName:   Douglass, Chris 
OrgAbusePhone:  +1-972-788-1000 
OrgAbuseEmail:  penguinpwrd@gmail.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/DOUGL278-ARIN

OrgTechHandle: IPADM814-ARIN
OrgTechName:   IP Admin
OrgTechPhone:  +1-212-610-5663 
OrgTechEmail:  ipinfo@hilcostreambank.com
OrgTechRef:    https://rdap.arin.net/registry/entity/IPADM814-ARIN

OrgTechHandle: DOUGL278-ARIN
OrgTechName:   Douglass, Chris 
OrgTechPhone:  +1-972-788-1000 
OrgTechEmail:  penguinpwrd@gmail.com
OrgTechRef:    https://rdap.arin.net/registry/entity/DOUGL278-ARIN

RAbuseHandle: LAUCH3-ARIN
RAbuseName:   Lauchlan, Graeme 
RAbusePhone:  +447503 641062 
RAbuseEmail:  graeme.lauchlan@aecom.com
RAbuseRef:    https://rdap.arin.net/registry/entity/LAUCH3-ARIN

RNOCHandle: LAUCH3-ARIN
RNOCName:   Lauchlan, Graeme 
RNOCPhone:  +447503 641062 
RNOCEmail:  graeme.lauchlan@aecom.com
RNOCRef:    https://rdap.arin.net/registry/entity/LAUCH3-ARIN

RTechHandle: DOUGL278-ARIN
RTechName:   Douglass, Chris 
RTechPhone:  +1-972-788-1000 
RTechEmail:  penguinpwrd@gmail.com
RTechRef:    https://rdap.arin.net/registry/entity/DOUGL278-ARIN

RTechHandle: LAUCH3-ARIN
RTechName:   Lauchlan, Graeme 
RTechPhone:  +447503 641062 
RTechEmail:  graeme.lauchlan@aecom.com
RTechRef:    https://rdap.arin.net/registry/entity/LAUCH3-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#

Parsed Whois Response

Peers

AS Number	Description	Country
AS209	CenturyLink Communications, LLC	US

Upstreams

AS Number	Description	Country
AS209	CenturyLink Communications, LLC	US